Fuel-piping for coke-ovens.



A.ROBERTS.

FUEL PIPING'FOR COKE OVENS. APPLICATION FILED AUG 5. l9l5- RENEWED JUN E 6. 19l8. 3 Y Patented Jan. 21, 1919.

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A, ROBERTS. FUEL PIPING FOR COKE OVENS. APPLICATION FILED AUG. 5, I9l5- RENEWED IUNE 6| I9I8- 1292,066. Patnted Jan. 21, 1919.

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\ -no1s, have UNITED STATES PATENT OFFICE.

ARTHUR ROBERTS, on EvANs'roN; ILLINoIs.

nunnrreime FOR coKn-ovENs.

continuation of application Serial a... 15,287, filed March 18, 1915. 1 This application filed August 5, 1915,

- Specification of Letters Patent.

' Patented .15....21, 19,19.

Serial No. 43,750. Renewed June 6, 1918. Serial No. 238,603;

To all whom it ma y concern: I I

.Be it known that I ARTHUR ROBERTS, a citizen of the United States, residing at county of Cook, and State of 1111'- invente'd certain .new' and useful Improvements in Fueli-Pipings, for. Coke Ovens and the like, of ,whi-ph the following is a specification. Y

The present invention hasu'eference to certain the supply of air to said. burners when the different coeflicients make suitable airis to be supplied through a system of P g- The'mam ob]ect of the lnvention is to provision for compensation for inequality of expansion of the pipingas compared to the expansion of the oven walls themselves with variations of temperature.

These inequalities in amount of expansion p 5 5 -of Flg. 1, looking in the direction of.

are occasioned by the fact that the oven walls themselves rise to a very much higher temperature than the the fact that the oven walls and piping have of expansion.

'. burner should maintain a fixed relationship objects of the present tain this fixed to the-wall of the oven at the point where it delivers its combustible gas. One of the invention is to provide flexibleconnections between the" piping and various burners, so that the burners may rerelationship with respect. to piping move relatively to the to maintain gas t1 ht the manifold I piping manifolds of walls, but nevertheless connections between' and. the burners.

Another object of the invention has reference to a simplified arrangement .of pipj ing, whereby the gas, may be delivered from :a single header to all of the burners of a bench of ovens with a minimum amount of piping and with a minimum and connections.

In this connection another object is to provide an arrangement for acomphshmg oregoing results, alsoin those cases whereboth the air and gas are delivered from headers running along the bench of ovens. Q A I Other objects and uses will appear from a detailed description ofthe inventlon which consists -in-the features of construction and improvements in piping-'which is' used for the supply of fuel gas to the burnpip'ing, and also by.

Each

number of pipes.

combinations of parts hereinafter described and claimed.

In the drawings: Figure 1 shows a front elevation of the upper portions of three adjacent ovens, showing the piping connection for the supply of both air and gas from overhead bench headers to the burners of the various heating walls;

Fig. 2 is a cross section on enlarged scale taken on the line 22 of Fig. 3, looking-in thedirection of the arrows, the lower portion of the section being shifted slightly so .{as to bring the burners into section; 1 v Fig. 3 is a' plan'view of a portion of the top of a bench of ovens, showing the arrangement of piping, certain portions of the piping being broken away so asxto better show the piping arrangment'; Fig. 4 is a detail elevation of one of the brackets for supporting the manifolds; and Fig. 5 is a detail section taken on the line the arrows.

Fig. 6 is a detail fragmentary .view of a modified arrangement of piping in which use is made of certain features of the present invention. I

This application is a continuation of my copending application for Letters Patent of the United States, Serial No. 15287, filed March 18,1915. a

In Fig. 1, I haveillustrated the upper portions of three ovens numbered 6, 7, and 8, respectively. Each of these ovens isprovided with the side heating walls 9 andv 10,

and the intermediate walls 11 are illustrated. between consecutive.

as filling in the spaces ovens. The construction illustrated in Fig. 2 is substantially that disclosed in Letters Patent of the United States No. 1132685,

filed by me September ,8, 1914, but it will be understood that, as far as the features'of the present invention are concerned, I am in nowise limited to the said construction.

Along the upper portion of said heating wall, i s a row of burners 12. The burner construction illustrated in Fig. 2 is substantially the same as that disclosed in my copending ap' lication', Serial No. 875,503, filed December-4, 1914, but as far as the features of the present invention are concerned, any suitable type of burner might be used. v Alongthe'upper portion of one side M- a downcomer manifolds supply: air burners at each side.

-ranging the piping,

the benchof ovens, there are supported the headers 13 and 14. These headers supply air and gas respectively for the various burners.

' As a convenient means for supportingthese of the row of struts.

Above the space between adj acent heating walls of consecutive ovens, I support the manifolds 18 and 19, respectively. Each air of manifolds 18 and 19 extends substantially the full length of the oven, and, therefore, extends across substantially the fullwidth of the bench. The manifolds 18' supply gas, and the manifolds 19 supply air to the various burners Each set or pair of and 'gas'to a row of This feature is well demonstrated in Figs. 2 and 3. By thus arthe air and gas to all of the burners o'fthe bench with aminimum amount of piping and with a minimum number of individual pipes or manifolds. Ordinarily, the charging ports 20 illustrated in Fig. 3 must be reached from a position immediately above each oven. It is, therefore, evident that in many instances it would be very inconvenient to run the manifolds along directly over the carbonizing chambers, sons to supply the air and gas in both directions to burners of the two heating walls'of a single oven.- I, therefore, illustrate the manifolds 18 and- 19 as being mounted over the space between consecutive ove'ns, so as to supply air and gas to the adjacent heating walls of consecutive ovens instead of to heating walls of the same oven. g

Extending downward from the-header 14, 21. leads directly to each of the manifolds for the supply of air thereto, and the valves 22 are interposed'jin these\ downcomers, so that the air supply can be shut off from the manifolds of any oven. Opposite to each oven, I provide adown-' comer .23 from the gas header 13, said downco'mer in turn leading into a T-connection the arms of which lead sidewiseto the manifolds 18 of the corresponding oven.- The valves 25 control the supply of gas through the downcomers23. It is thus evident that the air and gas supply for any given oven may be controlled by the manipulation of one valve 25 and two of the valves 22. With the arrangement of connections just described, I am enabled to deliver-the 1 air and gas from the headers to the manifolds of each oven in a very direct manner and with'a very simple arrangement of piping, and am also enabled to control the supply of air and gas in bulk to each oven with y a minimum number of valves.

A pipe 26 leads downward to each one of to each burner.

tions are brought together compressible gas I am enabled to deliver from their respective burners,

the burners. the connections 27 and 28 lead from the manifolds 18 and 19 respectively to these pipes 26, and the valves 30 and 31 control the supply of gas and air respectively It is thus possibleto indi 7c vidually control the supply of gas and air to the various burners, thus regulating the mixture in each burner, aswell as the total combustible mixture delivered to it.

In order to take up the expansion in the manifolds, .I have illustrated thefollowing arrangement: Each of said manifolds is. preferablyinade up from a number of sections 32, and at joints 33 where these sec- 8Q kets may be used sogas to fpermit a certain. amount of change lathe total Tength of the 'manifold by compress on of. the gaskets.

. Each pair'of manifolds is carried by a row of brackets '34 havin the rollers 35 and 36 ,on which the manifolds are directly mounted, the brackets being supported by the oven walls In case of any relative movement between the manifolds and oven. walls, due to changes in length with expansion and. contraction, the manifolds will roll with respect to the brackets. Insuch case, however} aponsiderable strain would be thrown on the c;onnections and 28 leading from the manifolds to the urners,

andthe pipes 26 wo'dld bedrawn-o f t of line so that leaks would be occasioned, and thepiping structure would be very seriously racked. In order to permit of the necessary relative move ment between the manifolds and the pipes 26, I provide the olfsets in he pipes 27 and. 28 which are well illustr ted in Fig. 2. These offsets may be conv niently made up by the use of elbows an nipples, sothat when the relative movem nt occurs, the offsets will twist slightly with respect to the manifolds and with respect to the pipes 26. In the modifi d arrangement 'shon'n in Fig. 6 each manifold; is connected to the proper header by a cennection 37, the T -connection 2 being dispensed with.

While I have herein shown and described only-a single embodiment of certain features of my invention, still it will be understood that in practice many changes and modifications may be made without departing from its spirit or from the scope of the invention.

I claim:

1; The combination with a bench of coke ovei is, each even having heating walls, of a pair of headers extending along adjacent to the upper portion of one side of the bench, means for supporting said headers in the same horizontal plane, a pair of manifolds extending along adjacent to and above the upper portion of each pair of heating walls, means for supp rting each pair of manifolds-fin the same vertical plane, both of the 130 headers lying at a greater elevation than the upper manifolds, a connection extending downwardly from ,the outside header to -.each of the upper manifolds, connections extending downwardly from the inside header between adjacent pairs of manifolds,

a horiozntal T-connection from each of the last mentioned downwardly extending connections to the corresponding lower manifolds, and valves for controlling the deliveryof gases from the headers to the respective manifolds.

2. The combination with a bench of coke ovens, each oven having heating walls, of a pair of headers extending along adjacent to the upper portion of one side of the bench, means for supporting said headers in the same horizontal plane, a pair of manifolds extending along adjacent to and above the upperportion of each pair of heating, walls, means for supporting each pair of manifolds in the same vertical plane, both of the headers lying at a greater elevation than the upper manifolds, a valved connection extending downwardly from one header to each of the upper manifolds, valved connections extending downwardly from the other header between adjacent pairs of manifolds,

and a horizontal T-connection from each of the last mentioned downwardly extending connections to the corresponding lower manifolds.

3. The combination with a bench of coke ovens, .cach oven having heating walls, of a pair of headers extending along'adjacent to the upper portion of one side of the bench, means for supporting said headers in the same horizontal plane, a pair of manifolds" extending along adjacent to and above the upper portion of each pair of heating walls, means for supporting each pair of manifolds in the same vertical plane, both of the headers lying at a greater elevation than the upper manifolds, a connection extending downwardly from one header to one of each pair of manifolds, tending downwardly from the other header between adjacent pairs of manifolds, and a T connection from each of the last mentioned downwardly extending connections to the corresponding remaining manifolds.

ARTHUR ROBERTS.

Witnesses:

THOMAS A. BANNING, J r;, EPHRAIM BANNINGL connections ex- 

